// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CONTENT_SHELL_BROWSER_SHELL_LOGIN_DIALOG_H_
#define CONTENT_SHELL_BROWSER_SHELL_LOGIN_DIALOG_H_

#include "base/compiler_specific.h"
#include "base/strings/string16.h"
#include "build/build_config.h"
#include "content/public/browser/resource_dispatcher_host_login_delegate.h"

#if defined(OS_MACOSX)
#if __OBJC__
@class ShellLoginDialogHelper;
#else
class ShellLoginDialogHelper;
#endif // __OBJC__
#endif // defined(OS_MACOSX)

namespace net {
class AuthChallengeInfo;
class URLRequest;
}

namespace content {

// This class provides a dialog box to ask the user for credentials. Useful in
// ResourceDispatcherHostDelegate::CreateLoginDelegate.
class ShellLoginDialog : public ResourceDispatcherHostLoginDelegate {
public:
    // Threading: IO thread.
    ShellLoginDialog(net::AuthChallengeInfo* auth_info, net::URLRequest* request);

    // ResourceDispatcherHostLoginDelegate implementation:
    // Threading: IO thread.
    void OnRequestCancelled() override;

    // Called by the platform specific code when the user responds. Public because
    // the aforementioned platform specific code may not have access to private
    // members. Not to be called from client code.
    // Threading: UI thread.
    void UserAcceptedAuth(const base::string16& username,
        const base::string16& password);
    void UserCancelledAuth();

protected:
    // Threading: any
    ~ShellLoginDialog() override;

private:
    // All the methods that begin with Platform need to be implemented by the
    // platform specific LoginDialog implementation.
    // Creates the dialog.
    // Threading: UI thread.
    void PlatformCreateDialog(const base::string16& message);
    // Called from the destructor to let each platform do any necessary cleanup.
    // Threading: UI thread.
    void PlatformCleanUp();
    // Called from OnRequestCancelled if the request was cancelled.
    // Threading: UI thread.
    void PlatformRequestCancelled();

    // Sets up dialog creation.
    // Threading: UI thread.
    void PrepDialog(const base::string16& host, const base::string16& realm);

    // Sends the authentication to the requester.
    // Threading: IO thread.
    void SendAuthToRequester(bool success,
        const base::string16& username,
        const base::string16& password);

    // Who/where/what asked for the authentication.
    // Threading: IO thread.
    scoped_refptr<net::AuthChallengeInfo> auth_info_;

    // The request that wants login data.
    // Threading: IO thread.
    net::URLRequest* request_;

#if defined(OS_MACOSX)
    // Threading: UI thread.
    ShellLoginDialogHelper* helper_; // owned
#endif
};

} // namespace content

#endif // CONTENT_SHELL_BROWSER_SHELL_LOGIN_DIALOG_H_
